Time-fuse.



No. 629,160. Patentod July l8, I899. 0. HABTMANN.

TIME FUSE.

(Application filed Sept. 2, 1898.)

(Ho Hodel.)

NITED OSCAR HARTMANN, or ESSEN, GERMANY, ASSIGNOR 'To- FRIED. KRUPP,

or SAME PLACE.

. TIME-FUSE.

SPECIFICATION forming'part of Letters Patent No. 629,160, dated July 18, 1899.

Application filed September 2,- 189th Berial No. 690,104. Gila model.)

To a, whom it may concern: 'are arranged in the'usual manner for trans- Be it known that I, OSCAR HARTMA N, a mitting the fire t'rom'the percussion through citizen of the German Empire, residing at its the time-circuit to the shell charge. B is casen, Rhenish Prussia, Germany, have inventpaole of being turned for the purpose of timed certain new and useful Improvements in ing the fuse,-while B is fastened to thebody A. Time-Fuses, (for which application for Let-- b is a flange between-the upper and lower ters Patent has been made in Germany, dated part of the body'A for' supportingth'e timing February 16, 1808; in France, dated July30, arrangement. l I 1898,'and in Belgium, dated July 29, 1898, all g is-a latch-lever mounted in a; slot of the i 0 under the name of Fried.Krupp,) of which the upper part ofthe body A on a pin it and havfollowing is a specification. ing inserted in its upper arm a'spring which- This invention refers to improvements in shuts against the inner end of the slot.

time-fuses of the class consisting, essentially, In Fig. 1 the latch-lever "g is shown in its of a main chambered body containing a firenormal position'ofsaf by, its lower en'd pro- '5 in g-pin and adapted to be screwed into the jecting into'a recess in the ring B-to prevent end of the shell, one or two fuse-rings conthe latter fromturning on, the main body'A" taining the time-circuit, mounted thereon, a and the upper end slightly'projecting into plunger containing the fulminate, and a capthe percussion-chamber d and beneath the piece screwed to the main body.- plunger e,- so as to prevent the ,latterfrom :o The object oftheinventionis tosecnretime coming in contact with the firing :pin, the fuses of this class against accidents during spring h holding the lever in this position.

transportation; and it consists, essentially, in As shown in Fig. 3, the lower end of the a latch-lever pivoted to the main body and latch-lever g and the recess in the ring Bare normally held by a s'pring, so as tohave one so formed that by forcibly turning the ring 25 end projecting into a recess of one of the fuseto the right or left the latch-lever is released rings andto prevent turningof the same',while and turned into the position shown in Fig. 2, the other end projects into the percussionwhen the ring B is free to be turned-for the'8o chamber, so as to prevent contact between. purpose of timing the fuse, and thewayof the plunger or its fnlminate'and-the firingthe plunger c to the firingpin 'f iS' llI10b- 0 pin, and so shaped as to be released'by forci-- structed.

bly turning the fuse-ring. What 1 Cum as new is-' I This invention will be best understood by The combinationwith the main body A of reference to the annexed drawings,in WhiGltfa time-fuse, TiiS percussion-chamber d, -plnn- Figure 1 is a vertical centr'alsection of my ger e, firing-pin f, and recessed fuse-ring B, of;

3 5 improved fuse, showing the safety jposition, 1 a spring latch-lever g pivoted within anotch the lower end being shown in elevation.-' Fig. in the body A; the whole being so shaped and 2 is a similar section showing the safety- 'dearranged that in its normal position the lower vice released. Fig.3, isa horizontal section end of the lever-g engages the recess in the on the line III 111, Fig. 1. Fig. dis a vertical fuse-ring B, so as to prevent turning of the 40 section showing thefconnection between the latter in thebody A, while the upper end of fuse-chamber and the'explosion-chamber.

the lever pro ectsinto the percussion-cham- Similar letters refer tos'imila'r parts in the her against the plunger, so as to prevent the several views," 7 letter coming in'cont'act with the firing-pin, In the figures, idfidesignates the 'body'ofna but adapted to be disengaged from its normal 5 well-known time fuse, B and 3;, the rings position by forciblyturning the fuse-ring B,

mounted thereon, .IandQ heme; F'Phe lower substantially as and for the purpose specified. part a of the bodyAis threaded for. screwing .In testimony that I claim the foregoing as :00 it into the shell. The upper part c is cylinmy invention I have signed my name in presdrical, threaded at its upper end for screwing encefof two subscribing witnesses. j 50 on thenap G, and provided witha chamber d 1 OSCAR HARTMANN.

forthe percussionapparatustconsistingofthe Witnesses: plunger c, with small powder-magazine and" WILLIAM ESSENWEIN,J fulminate, and the firing-pin -The rings GEO. P. PETTI'I.v 

